The coordinates are .
The distance is .
Find the value of :
(Distance formula)
(Substitute
,
and
)
(Subtract:
)
(Take the square root of each side)
(Cancel square root)
(Evaluate powers:
)
(Subtract
from each side)
(Apply additive inverse property:
)
(Take the square root of each side)
(Cancel square root)
(Subtract
from each side)
(Apply additive inverse property:
) \ \
Therefore, possible values of
is
.
The possible values of is
.